Osam, E. Kobena; Bergman, Matt; Cumberland, Denise M. (2017-05-01). "An Integrative Literature Review on the Barriers Impacting Adult Learners' Return to College". Adult Learning. 28 (2): 54–60. doi:10.1177/1045159516658013. ISSN1045-1595. S2CID148259081.
Pascarella, Ernest T.; Terenzini, Patrick T (Winter 1998). "Studying College Students in the 21st Century: Meeting New Challenges". The Review of Higher Education. 21 (2): 151. doi:10.1353/rhe.1998.a30045. S2CID142073525.
Osam, E. Kobena; Bergman, Matt; Cumberland, Denise M. (2017-05-01). "An Integrative Literature Review on the Barriers Impacting Adult Learners' Return to College". Adult Learning. 28 (2): 54–60. doi:10.1177/1045159516658013. ISSN1045-1595. S2CID148259081.
Pascarella, Ernest T.; Terenzini, Patrick T (Winter 1998). "Studying College Students in the 21st Century: Meeting New Challenges". The Review of Higher Education. 21 (2): 151. doi:10.1353/rhe.1998.a30045. S2CID142073525.
Osam, E. Kobena; Bergman, Matt; Cumberland, Denise M. (2017-05-01). "An Integrative Literature Review on the Barriers Impacting Adult Learners' Return to College". Adult Learning. 28 (2): 54–60. doi:10.1177/1045159516658013. ISSN1045-1595. S2CID148259081.